ISO INTERNATIONAL STANDARD 19108 First edition 2002-09-01 Geographic information Temporal schema Information geographique Schema temporel Reference number ISO 19108:2002(E) @ ISO 2002 ISO 19108:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.ch Web www.iso.ch Printed in Switzerland @ ISO 2002 - All rights reserved ISO 19108:2002(E) Contents Page Foreword... Introduction. VI 1 Scope.. 2 Conformance 2.1 Conformance classes and requirements..... 2.2 Application schemas for data transfer.... 2.3 Application schemas for data with operations .... 2.4 Feature catalogues...... 2.5 Metadataelementspecifications. 2.6 Metadata for data sets .. 3 Normative references.. 4 Terms, definitions and abbreviated terms... 4.1 Terms and definitions .... 4.2 Abbreviated terms........ 5 Conceptual schema for temporal aspects of geographic information... 5.1 Structure of the schema .. 5.2 Geometry of time.. 5.2.1 Time as a dimension... 5.2.2 Temporal objects... 5.2.3 Temporal geometric primitives... 5.2.4 Temporal topological objects . 13 5.3 Temporal reference systems .... 5.3.1 Types of temporal reference systems..... 16 5.3.2 Calendars and clocks .... 5.3.3 Temporal coordinate systems 19 5.3.4 Ordinal temporal reference systems... 20 5.4 Temporal position .. 21 5.4.1 Introduction.. 5.4.2 TM_Position..... 21 5.4.3 TM TemporalPosition... 21 5.4.4 Position referenced to calendar and clock.... 23 5.4.5 23 5.4.6 Position referenced to an ordinal temporal reference system... 5.5 Time and components of geographic information .. 24 5.5.1 Temporal aspects of geographic information components . 24 5.5.2 25 5.5.3 Temporal feature operations.. 26 5.5.4 Time and feature associations.... 27 5.5.5 Temporal metadata elements... 29 Annex A (normative) Abstract test suite.... 31 A.1 A.2 Application schemas for data with operations .... 31 A.3 Feature catalogues..... 31 A.4 Metadata element specifications . 32 A.5 Metadata for data sets .. 32 Annex B (informative) Use of time in application schemas B.1 Temporal feature attributes.. 33 B.1.1 TM_GeometricPrimitive as a data type .. 33 ionserved ii